Scientists Detect Signs of a Hidden Structure Inside Earth’s Core

While most of us take the ground beneath our feet for granted, written within its complex layers, like pages of a book, is Earth’s history. Our history.

Now researchers have found more evidence for a whole new chapter deep within Earth’s past – Earth’s inner core appears to have another even more inner core within it.

more…

Tau.Neutrino said:

Scientists Detect Signs of a Hidden Structure Inside Earth’s Core

While most of us take the ground beneath our feet for granted, written within its complex layers, like pages of a book, is Earth’s history. Our history.

Now researchers have found more evidence for a whole new chapter deep within Earth’s past – Earth’s inner core appears to have another even more inner core within it.

more…

> This study failed to show much variation with depth in the inner core

Very good. No hidden structure …

> some models think the material of the inner core channels seismic waves faster parallel to the equator, others argue the mix of materials allows for faster waves more parallel to Earth’s rotational axis.

… and lots of disagreement …

> We are limited by the distribution of global earthquakes and receivers, especially at polar antipodes.

… and not enough data.